Coleton,Does the lenght of the string, weight on the end of the string, or the angle of the drop effect the pendulums range in 15 seconds. The length of the string effected the experiment the most. in the first group the highest average was 17 and the lowest was 7, so that means that the length of the string effected the averages the most. The second groups averages were all the same so that means that the number of washers did not effect the number of times the pendulum cycled back and forth. The third groups averages were all the same too, so that means that the number of washers and the angle of the drop did not effect the number of times the pendulum cycled back and forth in 15 seconds. Looking at the data I can see that the last two groups averages were all the same and the first groups averages were different. That means that the length of the string effected the experiment the most. When you look at the data you can tell that when you measure the length of the string increased the number of times the pendulum cycled in fifteen seconds. I think that when you use all of your variables (independent, dependent, and control) in a experiment it will help you understabd your data better. I believe that in every experiment that in your data, if you do multiple tests, then all your numbers will be some what similar. I feel that this eperiment is very good for us becaus it helped us with our teamwork and working together.